Last Updated：2025/11/21

(simile, idiomatic) Very unsympathetic; callous / (simile, idiomatic) Able to endure difficulties; tough

音声機能が動作しない場合はこちらをご確認ください

See correct answer

hard as nails

Source Word

hard as nails

Adjective

idiomatic not-comparable

(simile, idiomatic) Very unsympathetic; callous / (simile, idiomatic) Able to endure difficulties; tough

Japanese Meaning

非常に無情で冷淡な、情け容赦のない性格 / 困難に耐えることができる、非常に頑固でタフな性質

My boss is hard as nails, never showing any sympathy when we make mistakes.

私の上司は非常に無情で、私たちが間違いを犯しても決して同情を示しません。

Sense（1）

(simile, idiomatic) Very unsympathetic; callous

Sense（2）

(simile, idiomatic) Able to endure difficulties; tough